Me pehea te waihanga i tetahi Tahua Whakamuri-Kore e Whakaora ana ki tetahi Whārangi Hou ki Java

Me pehea te whakanui ake a Javascript i te tinihanga

Kei te hiahia nga kaihoahoa o te paetukutuku Novice ki te mohio me pehea te waihanga i te tahua taka-iho kia tae mai ai nga kaiwhakatere i tetahi o nga waahanga ka tukuna ki a ratau i taua waa. Ko tenei mahi ehara i te mea ahuareka kia penei pea. Hei tautuhi i tetahi tahua taka-iho ki te tuku atu ki tetahi whārangi Tukutuku hou ina whiriwhiria, me hiahia koe ki te tapiri i etahi ahua o te Javascript ki to puka.

Tīmatahia

Tuatahi, me tautuhi koe i ou tohu ki te whakauru i te URL kia rite ki te uara kia mohio ai to puka ki hea ka tuku atu i te kiritaki. Tirohia te tauira e whai ake nei:

Hoahoa Whārangi Hoahoa Tukutuku e timata ana i te HTML

Kia whakaturia e koe aua tohu, ka hiahia koe ki te whakauru i te huanga "whakawhiti" ki to tūtohu hei korero ki te whatunga ki te mahi i te wa e whakarereke ai nga rarangi kōwhiringa. Waihohia te Javascript katoa i tetahi raina, e whakaatu ana te tauira i raro nei:

onchange = "window.location.href = this.form.URL.options [this.form.URL.selectedIndex] .value">

Tautoko Awhina

Na, kua tautuhia to tohu, mahara kia mohio kei te tohuhia to tohu tohu "URL." Mena kaore, ka huri i te Javascript i runga ake i te wa e korero ana "URL" ki te panui i to ingoa tohu o to whiringa. Ki te hiahia koe i tetahi tauira tino taipitopito, ka taea e koe te kite i tenei puka i te mahi i te ipurangi. Mena ka hiahia tonu koe ki te arahi, ka taea hoki e koe te arotake i tetahi akoranga poto e korerorero ana i tenei tuhinga me etahi atu taahihinga ka taea e koe te tango me te Javascript.